Overview
The RG-S6510-4C is a high-performance, next-generation data center switch designed for cloud environments. With support for modular interface cards and flexible configurations, this 2U switch is capable of scaling to meet demanding network requirements.
- Max Ports: Up to 96 x 25G ports, or 32 x 100G ports, or 64 x 40G ports.
- Redundancy: 1+1 hot-swappable power supplies, 2+1 fan redundancy.
- Adaptive Ports: 100G ports supporting 100G/40G adaptive switching.
RG-S6510-4C Left top view

Core Features
High-Capacity Buffer for Non-Blocking Networks
The RG-S6510-4C delivers line-rate transmission across all ports, ensuring no traffic bottlenecks in large data centers. With an advanced buffer management system, it guarantees optimal utilization of network resources even in high-traffic environments.
Virtualization with VSU 2.0
Supports VSU 2.0 (Virtual Switch Unit) technology, virtualizing multiple devices into one logical switch. This simplifies management and enhances network reliability with cross-device link aggregation and rapid failover within 50-200 ms, ideal for mission-critical operations.
VXLAN Support for Data Center Overlay Networks
Facilitates seamless creation of VXLAN-based overlay networks, solving the VLAN scalability challenges in traditional architectures. The switch supports EVPN, which automates VXLAN tunnel discovery, enabling flexible and scalable L2 networks.
RDMA for Lossless Ethernet
By integrating RDMA (Remote Direct Memory Access), the switch achieves low-latency, lossless data forwarding—critical for improving performance in bandwidth-heavy environments like cloud storage or HPC.
Advanced Traffic Visualization
With hardware-accelerated traffic visualization, you can monitor traffic paths, delay times, and quickly resolve network issues, improving troubleshooting efficiency by more than 10x.
Carrier-Grade Reliability
The switch supports multiple layers of redundancy:
- Power and fan module redundancy, with all components hot-swappable.
- Protection mechanisms including overcurrent, overvoltage, and overheating protection.
- BFD and GR support to ensure fast network convergence during failures.
Dual-Stack IPv4/IPv6 Protocol Support
Offers seamless IPv4/IPv6 dual-stack operation with line-rate forwarding for both. Supports various tunneling mechanisms and routing protocols (OSPFv3, BGP4+, etc.), making it adaptable for both current and future IPv6 networks.
Comprehensive Security Suite
Features a robust set of security measures:
- DoS attack prevention, ARP inspection, IP spoofing detection, and hardware-based ACLs.
- SSH, SNMPv3, and Telnet/SSHv6 support for secure management.
- IPv4/IPv6 ACLs ensure granular access control.
Complete Management Capabilities
The switch comes equipped with multiple management interfaces:
- Console, MGMT, USB ports.
- SNMPv1/v2c/v3, CLI, Telnet, SSH2.0, and SSL for secure device management.
- Supports traffic monitoring with SPAN/RSPAN.
Key Specifications
Hardware
| Specification | Details |
|---|---|
| Port Types | 25G, 40G, 100G |
| Slot Count | 4 slots for expansion cards |
| Expansion Card Types | M6500-24VS2CQ, M6500-08CQ, M6500-16QXS |
| Management Ports | 1 MGMT, 1 Console, 1 USB |
| Switching Capacity | 6.4 Tbps / 57.6 Tbps |
| Forwarding Rate | 2030 Mpps |
| Dimensions | 442mm x 520mm x 86mm (2U) |
| Weight | Approx. 14 kg (with power and fans) |
Power and Environmental
| Specification | Details |
|---|---|
| AC Input | 100V-240V AC (50Hz-60Hz) |
| DC Input | 36V-72V DC |
| Max Power Consumption | 650W |
| Typical Power Usage | 455W |
| Operating Temperature | 0°C to 40°C |
| Operating Humidity | 10% – 90% RH (non-condensing) |
Software Features
- L2 Protocols: Includes IEEE 802.3ad, 802.1p, 802.1Q, MSTP, QinQ, GVRP.
- L3 Protocols (IPv4): OSPFv2, BGP4, RIP, VRRP, and others.
- IPv6 Support: IPv6 routing protocols including OSPFv3, BGP4+, MLDv1/v2, and more.
- Data Center Features: VXLAN routing, bridging, and EVPN.
- Traffic Control: Advanced QoS features including SP, WRR, DRR, and WRED.
- Security: DoS prevention, IP spoofing protection, and secure access via SSH/SNMPv3.
Optional Configuration Guide
1. Choose Main Unit, Fans, and Power Modules
Start by selecting the main RG-S6510-4C unit, fans, and power supply modules based on your redundancy and power needs.
2. Select Expansion Cards
Choose the appropriate expansion cards based on your network’s port requirements:
- M6500-08CQ: 8 x 40G/100G QSFP28
- M6500-24VS2CQ: 24 x 25G SFP28 + 2 x QSFP28
- M6500-16QXS: 16 x 40G QSFP+
3. Choose Optical Modules
Finally, complete the setup with compatible optical modules based on transmission distances and fiber type.
Optical Module Information
25G Optical Modules
| Model | Description |
|---|---|
| VG-SFP-SR-SM850 | 25G SR, SFP28, 850nm, max 100m on multimode fiber |
| VG-SFP-LR-SM1310 | 25G LR, SFP28, 1310nm, max 10km on single-mode fiber |
| VG-SFP-AOC5M | 25G AOC, SFP28, active optical cable, length 5m |
40G Optical Modules
| Model | Description |
|---|---|
| 40G-QSFP-SR-MM850 | 40G SR, QSFP+, 850nm, MPO interface, max 150m on multimode fiber |
| 40G-QSFP-LR4-SM1310 | 40G LR4, QSFP+, 1310nm, dual LC interface, max 10km on single-mode fiber |
| 40G-QSFP-LSR-MM850 | 40G LSR, QSFP+, MPO interface, max 400m on multimode fiber |
| 40G-QSFP-iLR4-SM1310 | 40G iLR4, QSFP+, dual LC interface, max 2km on single-mode fiber |
| 40G-QSFP-LX4-SM1310 | 40G LX4, QSFP+, dual LC interface, supports both multimode (OM3/OM4 up to 150m) and single-mode fiber (up to 2km) |
| 40G-AOC-5M | 40G QSFP+ active optical cable, length 5m |
| 40G-AOC-30M | 40G QSFP+ active optical cable, length 30m |
100G Optical Modules
| Model | Description |
|---|---|
| 100G-QSFP-SR-MM850 | 100G SR, QSFP28, 850nm, MPO interface, max 100m on multimode fiber |
| 100G-QSFP-LR4-SM1310 | 100G LR4, QSFP28, dual LC interface, 1310nm, max 10km on single-mode fiber |
| 100G-QSFP-iLR4-SM1310 | 100G iLR4, QSFP28, dual LC interface, 1310nm, max 2km on single-mode fiber |
| 100G-QSFP-ER4-SM1310 | 100G ER4, QSFP28, dual LC interface, 1310nm, max 40km on single-mode fiber |
| 100G-AOC-5M | 100G AOC, QSFP28, active optical cable, length 5m |
| 100G-AOC-10M | 100G AOC, QSFP28, active optical cable, length 10m |
1G Optical Modules
| Model | Description |
|---|---|
| GE-SFP-LH40-SM1310-BIDI | 1G LH, SFP, BIDI LC interface, max 40km on single-mode fiber |
| GE-SFP-LX20-SM1310-BIDI | 1G LX, SFP, BIDI LC interface, max 20km on single-mode fiber |
| GE-SFP-LX20-SM1550-BIDI | 1G LX, SFP, BIDI LC interface, max 20km on single-mode fiber |
| MINI-GBIC-LH40-SM1310 | 1G LH, SFP, dual LC interface, max 40km on single-mode fiber |
| MINI-GBIC-LX-SM1310 | 1G LX, SFP, dual LC interface, max 10km on single-mode fiber |
| MINI-GBIC-SX-MM850 | 1G SR, SFP, dual LC interface, max 550m on multimode fiber |
| MINI-GBIC-ZX80-SM1550 | 1G ZX, SFP, dual LC interface, max 80km on single-mode fiber |
10G Optical Modules
| Model | Description |
|---|---|
| XG-LR-SM1310 | 10G LR, SFP+, dual LC interface, max 10km on single-mode fiber |
| XG-SFP-ER-SM1550 | 10G ER, SFP+, dual LC interface, max 40km on single-mode fiber |
| XG-SFP-LR-SM1310 | 10G LR, SFP+, dual LC interface, max 10km on single-mode fiber |
| XG-SFP-SR-MM850 | 10G SR, SFP+, dual LC interface, max 300m on multimode fiber |
| XG-SFP-ZR-SM1550 | 10G ZR, SFP+, dual LC interface, max 80km on single-mode fiber |
| XG-SR-MM850 | 10G SR, SFP+, dual LC interface, max 300m on multimode fiber |
| XG-SFP-AOC1M | 10G AOC, SFP+, active optical cable, length 1m |
| XG-SFP-AOC3M | 10G AOC, SFP+, active optical cable, length 3m |
| XG-SFP-AOC5M | 10G AOC, SFP+, active optical cable, length 5m |
1G Electrical Modules
| Model | Description |
|---|---|
| Mini-GBIC-GT(F) | 1G electrical module, SFP form factor, RJ45 interface, max transmission distance 100m using Cat 5e/6/6a cables |